Weyl conformal symmetry model of the dark galactic halo

TL;DR

This paper proposes a Weyl conformal symmetry-based model that explains galactic halo dynamics and cosmic acceleration without dark matter, fitting observations with minimal parameters.

Contribution

It introduces a conformal Higgs model that accounts for galactic rotation curves and cosmic acceleration without dark matter, using Weyl symmetry modifications.

Findings

Fits observed galactic rotation velocities without dark matter

Accurately models cosmic acceleration with one free parameter

Provides a unified conformal framework for gravity and Higgs field

Abstract

The postulate of universal conformal (local Weyl scaling) symmetry modifies both general relativity and the Higgs scalar field model. The conformal Higgs model (CHM) generates an effective cosmological constant that fits observed accelerating Hubble expansion for redshifts $z\leq 1$ (7.33 Gyr) accurately with only one free parameter. Growth of a galaxy is modeled by central accumulation of matter from an enclosing empty spherical halo whose radius expands with depletion. Details of this process account for the nonclassical radial centripetal acceleration observed as excessive orbital velocities in galactic haloes. There is no need for dark matter.